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[Will]

Configuring RPC over HTTP on a single Exchange server

Before we start configuring lets go over the requirements:

• Exchange 2003 - SP1 for Exchange 2003 is recommended.
  
• RPC over HTTP windows component installed on the Exchange 2003 server. This can be found in Add or Remove Programs | Add/Remove Windows Components | Networking Services. NOTE: Be sure to run Windows Update after installing this component. There is a critical update available for this service.
  
  
• Outlook 2003 running on Windows XP SP1 (hotfix from KB article 331320). Windows XP SP2 is recommended.
  
  
• A valid and trusted SSL certificate is highly recommended. Outlook will fail to connect if the certificate is not valid or trusted.
  

Configuring RPC over HTTP

If you’re running Exchange 2003 with SP1, you will need to configure the server as a back-end server on the RPC-HTTP tab. You can find the tab by viewing the Properties of the Exchange server in the Exchange System Manager. You will get a Warning about not having front-end servers, you can just click OK. After that you will get another Warning about the server not having the correct ports configured. Click OK to configure the ports automatically.

Next you will need to configure the RPC virtual directory in IIS. You can find the RPC virtual directory under the Default Web Site. You will need to make sure Anonymous access is disabled and Basic Authentication and Integrated Windows authentication are enabled for the RPC virtual directory.

Configuring the RPC proxy server

Configuring the RPC proxy server will require some registry editing. Modify the ValidPorts subkey under HKEY_LOCAL_MACHINE\Software\Microsoft\Rpc\RpcProxy with the following:

NETBIOS:6001-6002; FQDN:6001-6002; NETBIOS:6004; FQDN:6004;

Where NETBIOS is the netbios name of your Exchange server and FQDN is the fully qualified domain name of your Exchange server.

Create a new Multi-String Value called NSPI interface protocol sequences under HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\NTDS\Parameters. Add the following data: ncacn_http:6004

Reboot your server and test.

I will post how to create a profile using RPC over HTTP in a separate topic.

[Will]

I don't think I've missed anything but if I have please let me know.


Thanks!